Ok, so I took my iPhone 3G into the Genius Bar today because of a crack in the headphone socket. Again, they replaced it no problems and I went away very happy. When I got home and plugged the iPhone into my Mac, I noticed that the screen I was greeted with was the "Welcome To Your New iPhone" screen asking me to register ... something I'd not seen in my previous refurbs. I then checked the serial number, and it begins 88 instead of 5K. My first 3G, bought in September 2009, had an 88 serial number, but the two refurbs I'd had since had 5K serial numbers. After registering, I logged onto the Get Warranty site and entered the serial number of my new iPhone 3G. The information now reads: Repairs and Service Coverage: Active Your product is covered for eligible hardware repairs and service under Apple's Limited Warranty. Estimated Expiration Date: June 2, 2011 My warranty was due to expire on September 2010, one year after buying it, and the previous two refurbs had the warranty carried over. For some reason though, because this is a brand new phone, it seems I've gained another 12 months of warranty. Surely the Genius has screwed up ... I take it this will rectify itself when the registration goes through in it's entirety and serial numbers are matched up, etc?